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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.31897/PMI.2022.76</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15841</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15841</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Металлургия и обогащение</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Metallurgy and concentration</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Morphometric parameters of sulphide ores  as a basis for selective ore dressing</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Морфометрические параметры сульфидных руд  как основа селективной рудоподготовки сырья</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Duryagina</surname>
            <given-names>Asiya M.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Дурягина</surname>
              <given-names>А. М.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Duryagina</surname>
              <given-names>Asiya M.</given-names>
            </name>
          </name-alternatives>
          <email>duryagina_am@pers.spmi.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0002-9417-7549</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Talovina</surname>
            <given-names>Irina V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Таловина</surname>
              <given-names>И. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Talovina</surname>
              <given-names>Irina V.</given-names>
            </name>
          </name-alternatives>
          <email>i.talovina@gmail.com</email>
          <contrib-id contrib-id-type="orcid">0000-0003-4132-7010</contrib-id>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Lieberwirth</surname>
            <given-names>Holger </given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Либервирт</surname>
              <given-names>Х. </given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Lieberwirth</surname>
              <given-names>Holger </given-names>
            </name>
          </name-alternatives>
          <email>holger.lieberwirth@iam.tu-freiberg.de</email>
          <contrib-id contrib-id-type="orcid">0000-0002-5207-4138</contrib-id>
          <xref ref-type="aff" rid="aff3"/>
        </contrib>
        <aff-alternatives id="aff3">
          <aff>
            <institution xml:lang="ru">Фрайбергская горная академия (Германия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Freiberg Mining Academy (Germany)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Ilalova</surname>
            <given-names>Regina K.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Илалова</surname>
              <given-names>Р. К.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Ilalova</surname>
              <given-names>Regina K.</given-names>
            </name>
          </name-alternatives>
          <email>ilalova_rk@pers.spmi.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0003-2241-3239</contrib-id>
          <xref ref-type="aff" rid="aff4"/>
        </contrib>
        <aff-alternatives id="aff4">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2022-11-03">
        <day>03</day>
        <month>11</month>
        <year>2022</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2022</year>
      </pub-date>
      <volume>256</volume>
      <fpage>527</fpage>
      <lpage>538</lpage>
      <history>
        <date date-type="received" iso-8601-date="2022-05-12">
          <day>12</day>
          <month>05</month>
          <year>2022</year>
        </date>
        <date date-type="accepted" iso-8601-date="2022-09-06">
          <day>06</day>
          <month>09</month>
          <year>2022</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2022-11-03">
          <day>03</day>
          <month>11</month>
          <year>2022</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2022 А. М. Дурягина, И. В. Таловина, Х.  Либервирт, Р. К. Илалова</copyright-statement>
        <copyright-statement xml:lang="en">© 2022 Asiya M. Duryagina, Irina V. Talovina, Holger  Lieberwirth, Regina K. Ilalova</copyright-statement>
        <copyright-year>2022</copyright-year>
        <copyright-holder xml:lang="ru">А. М. Дурягина, И. В. Таловина, Х.  Либервирт, Р. К. Илалова</copyright-holder>
        <copyright-holder xml:lang="en">Asiya M. Duryagina, Irina V. Talovina, Holger  Lieberwirth, Regina K. Ilalova</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/15841">https://pmi.spmi.ru/pmi/article/view/15841</self-uri>
      <abstract xml:lang="ru">
        <p>Для оценки возможности селективной дезинтеграции и снижения степени переизмельчения труднообогатимых руд были проведены оптико-микроскопические и рентген-микротомографические исследования, идентифицированы количественные характеристики морфологических параметров образцов вкрапленных и богатых медистых руд норильского типа Октябрьского месторождения. Среди количественных морфологических параметров наиболее информативными оказались площадь зерен, периметр, неровность края, сферичность, вытянутость и среднее расстояние между зернами для вкрапленных медно-никелевых руд; площадь зерен, периметр, неровность края и вытянутость для богатых медистых руд. Изученные параметры характеризуются увеличением значений и дисперсности в рудных зонах, что особенно важно для тонкозернистых руд, с трудом диагностируемых оптическими методами. Методом компьютерной рентгеновской микротомографии проведено трехмерное моделирование внутреннего строения образцов с сульфидной минерализацией, благодаря которому можно наблюдать количественные параметры зерен, агрегатов, распределение в общем объеме породы и взаимоотношения друг с другом. Оценка порового пространства породы методом компьютерной микротомографии дала возможность сопоставить полученные результаты с прочностными характеристиками горных пород и руд, в том числе на различных типах дробилок. Полученные количественные характеристики структурно-текстурных параметров, анализ гранулометрического состава зерен рудных минералов позволяют оценить возможность применения селективного измельчения на различных этапах подготовки руды.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>To assess the possibility of selective disintegration and reduction of overgrinding of hard-to-reproduce ores, optical microscopic and X-ray microtomographic studies were carried out and quantitative characteristics of morphological parameters of disseminated and rich cuprous ore samples from Norilsk-type Oktyabrsky deposit were identified. Among quantitative morphological parameters the most informative are area, perimeter, edge roughness, sphericity, elongation and average grain spacing for disseminated copper-nickel ores; area, perimeter, edge roughness and elongation for rich cuprous ores. The studied parameters are characterized by increased values and dispersion in ore zones, which is especially important for fine-grained ores, which are difficult to diagnose by optical methods. Three-dimensional modelling of the internal structure of sulphide mineralisation samples was carried out using computed X-ray microtomography, which allows observation of quantitative parameters of grains, aggregates and their distribution in the total rock volume and interrelationship with each other. The evaluation of rock pore space by computer microtomography made it possible to compare the results obtained with the strength characteristics of rocks and ores, including those on different types of crushers. The obtained quantitative characteristics of structural-textural parameters and analysis of grain size distribution of ore minerals allow us to evaluate the possibility of applying selective crushing at various stages of ore preparation</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>сульфидные медно-никелевые руды</kwd>
        <kwd>технологическая минералогия</kwd>
        <kwd>количественные структурно-текстурные параметры</kwd>
        <kwd>Thixomet PRO</kwd>
        <kwd>компьютерная рентгеновская микротомография</kwd>
        <kwd>селективное измельчение</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>copper-nickel sulphide ores</kwd>
        <kwd>process mineralogy</kwd>
        <kwd>quantitative structural-textural parameters</kwd>
        <kwd>Thixomet PRO</kwd>
        <kwd>computed X-ray microtomography</kwd>
        <kwd>selective grinding</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
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